Maximizer 10 cannot be installed on several Vista machines. The installations fail with the message: "Cannot install SQL Express server or the current existing one does not work properly".

Maximizer recognizes this as an error, however their resolution ideas don't work!
See: Cannot Install Microsoft SQL Express Server Error

I earlier posted a way which seemed to resolve the issue. Link But this worked only on one machine. There is still no resolution for two other Vista machines, even a clean Vista installation did not help!

If I install SQL Server separately, Maximizer installs but cannot connect to the local SQL server instance "MAXIMIZER". The error message is "Maximizer is not installed on "ComputerName" machine or is not available at the moment".

This message has been edited. Last edited by: Rosch,

Finally found the solution:

SQL server authentication needs to be set to "SQL Server and Windows authentication mode".
This is beeing set in SQL server management studio - properties - security.